so this support request is not install related.
I have had mcmyadmin pro for a long time and well I had stopped using it due to reasons and i now see that we need to use amp and I don’t seam to have any licenses at all at even dough i know that I have paid for at lest 2 and its frustrating for the fact that i cannot find the proof of the purchases in paypal or even my email after all these years
Try some other emails. Worst case shoot over your name, billing address (from the time), and your email over to contact@cubecoders.com to see if they can find you